Earth working and cultivating machine



Aug. 13, 1946. H. D.IMAY 2,405,796

EARTH WORKING AND CULTIVATIYNG MACHINE Filed Aug. 23, 1944 3 Sheets-Sheet l N ma/v DJZ r,

Inventor I.

H. D. MAY

EARTH WORKI NG AND CULTIVA-TING MACHINE Aug. 13,

Filed Aug. 2:, 1944 s Sheets-Sheet 2 Aug. 13, 1946. H. D. MAY 2,405,796

EARTH WORKING AND CULTIVATING MACHINE Filed Aug. 23, 1944 3 Sheets-Sheet 3 Iniwito) WWI w;

Patented Aug. 13, 1946 I arcane EARTH WORKING AND CULTIVATING CHINE Harmon D. May, J ayton, Tex Application August 23, 1944, Serial No. 550,751

2 Claims.

This invention relates to farm machinery in general, and has reference in particular to duplex or twin straddle-row structure characterized by a plurality of systematically arranged knives and foot-type plows.

In carrying out the principles of the invention, I have adopted an open-type, multiplebeam, horizontal framework, this supported on longitudinally spaced straddle-row sled-like carriages, said carriages supporting the framework, said framework embodying a plurality of depending supports for two distinguishable gangs of plows, a main gang along the rear trailing edge of the frame structure, and an intermediate or intervening gang trailing the carriages and rearwardly diverging pulverizing knives mounted on the frontal end portions of said carriages.

Although appearing structurally complicated, the overall structural assemblage is in reality comparatively simple in that, generally speaking, two carriage units support the frame and the frame directly and indirectly supports the systematically organized rear and intermediate rows of plows forming the rear and intermediate gangs, all of the ground working implements being on the same horizontal plane.

Novelty is predicated upon the horizontal framework characterized by a plurality of parallel angle irons connected together by transverse horizontal bracing members, certain of said bracing members constituting supports for the plows in the so-called rear trailing gang.

Further novelty is predicated upon the carriage units themselves, each characterized by runners with appropriately braced means for attaching same beneath the main frame structure, and each including rearwardly flaring brace arms serving at their rear ends as anchors or supports for the smaller plows forming the intermediate or central gang.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate like parts throughout the same:

Figure 1 is a front elevation of a cultivator and ground-working machine constructed in accordance with the principles of the present invention.

Figure 2 is a top plan View of the same.

Figure 3 is a horizontal section taken on the plane of the line 33 of Figure 1 looking in the direction of the arrows.

Figure 4 is an end elevational view of Figures 2 l and 2 observing same in the direction from either right to left or left to right.

Figures 5 and 6 are detail sections on the planes of the lines 5-5 and 6-45, respectively, of Figure 2. 7

Figure 7 is a perspective view of one of the carriages per se.

Reference being had to the drawings by distinguishing reference numerals, and generally observing the structure, it will be seen that (see Fig. 4 for example) each carriage is denoted by the numeral 8. The superposed open Work frame structure is indicated generally at 9. The plows forming the rear trailing gang are denoted by the numerals'lfl and those forming the intermediate or central gang are distinguished by the reference numerals ll.

As shown in Figure '7, each carriage comprises a pair of spaced parallel ground-riding runners 52 whose forward ends are beveled, as at I 3, to readily traverse the surface and to ride over weeds and rough ground. Spaced inwardly from the frontal ends and rising vertically are uprights I l having their upper end portions l5 laterally directed and secured together against the spacing attaching elements l6. Thus, we have arches,

and these arches are bolted together at I? and suitably secured to the structure. The inner or under side of the frame rear ends of .the runners are directed upwardly to provide additional uprights [8 braced by an intervening bolt l9. I-lorizontal adapter braces 20 are secured to the uprights It and i8 and havetheir rear end portions diverging andflaring outwardly, as at 25. The runners l2 serve to support a pairof companion rearwardly diverging, suitably proportioned and shaped knives or cutting blades 22. These are horizontal and terminate at their rear ends at the approximate longitudinal center of the machine. The aforementioned plow units II are mounted cnthe rear diverging end portions of the adapter braces 20, as indicated at the point 21.

Considering now the frame structure 9, this comprises, essentially, three horizontally disposed angle irons 23, 24 and 25, respectively. All of these are disposed in the same horizontal plane. The two angle irons 24 and 23 are of the same length, and the rear one 25 is longer and has its end portions extending equal distances beyond the corresponding ends of the irons 23 and 24. The frame structure also includes transverse stabilizing and assembling plates 26, these being bolted at their forward ends to the angle iron 23, as shown to advantage in Figure 2. These plates have their rear end, portions bifurcated and the furcations are differentiated by the numerals 21 and 28, respectively. The short furcations 2'! connect or bolt to the angle iron 24. The longer furcations 28 bolt to the intermediate portion of the rear or trailing angle iron 25. I next call attention to the rods 29 and 30-30 (see Fig. 2), the rod 29 extending transversely across the central part of the frame and being bolted thereto, the rods 30 being at the ends of the angle irons 23, 24 and 25, and secured in any suitable manner,

rected laterally outward and bolted to the extreme outer ends of the angle iron 25.

The plow feet 32 (of which there are three) form the so-called rear trailing gang, They are detachably bolted to the lower ends of 'the'rela-' tively tall shanks 33, these being secured by, appropriate clamps 34 to the rear extending ends of the aforementioned cross-rods .29 and 30, respectively. These plow feet are V-shaped in configuration.

The smaller low feet, in the intermediate gang, are denoted by the numerals 35 and these, again, are V-shaped in form and detachably bolted to the shorter shanks 36, the latter being clamped adjustably, as at 31, to the rear flaring end portions 2! of the aforementioned adapter braces 20.

It will be noted that the plow units are longitudinally spaced along the reartrailing edge of the frame, the two end ones being disposed outwardly of the endmost knives 22, and the central onebeing disposed in a position between the respective pairs of knives 22, as brought out in Fi ure 2. On the other hand, the smaller plows 35 are disposed in the spaces between the main plows 32, being somewhat staggered in relation thereto, and also located in zones or areas occurring within the confining ranges of the rear end portions of the respective pairs of cutting blades 22. The plows ID are ina row across the rear of the machine and the plows ,II in an aligned row with each other and at points between the free ends of the blades 22 and the main plows ID.

The numerals 38 designate suitable brackets attached to thefrontal portion of the frame, directly to the angle irons 23, to permit attachment of the entire structure to a tractor or other lead and powering vehicle.

Novelty is redicated upon the straddle-row carriage unit 8, as shown in Figure 'l, with and without the attached knives 22 and complemental plow units 1!. Further, novelty is thought to reside in these carriages carrying diverging-working blades or knives 22 and the plow units rearwardly thereof but within predetermined limits of the terminal ends of said 4 the series of three rods 29 and 30, is another phase of the invention worthy of consideration.

A careful consideration of the foregoing description in conjunction with the invention as illustrated in the drawings will enable the reader to obtain a clear understanding and impression of the alleged features of merit and novelty sufficient to clarify the construction of the invention as hereinafter claimed.

Minor changes in shape, size,- materials and rearrangement of parts may be resorted to in actual the rear end portions 3| of said rods being dithe invention as claimed.

practice so long as no departure is made from I claim: l. In a ground-working and cultivating machine of the class described, a carriage for a frame structure, said carriage comprising a pair of horizontal, spaced, parallel, ground-engaging runthe horizontal blades. Added to this, novelty is presumed to reside in the carriages carrying the diverging knives, the plow units l I and the frame structure carrying the rear trailing plow units I 0. Furthermore, and as previously emphasized, the frame ners, an arch vertically arranged and formed integral with the forward end of said runners, integral uprights at the rear ends of said runners, vertically elevated, horizontally disposed adapter arms secured at their outer, forward ends to portions of the arch and at their rear, intermediate portions to the upper ends of said uprights, the rear ends of said adapter arms diverging rearwardly and outwardly beyond the lines of draft of the uprights, a pair of blades, these being disposed in diverging relation on opposite sides of the carriage and having connection with the frontal portions of said runners, and a pair of plow feet having vertical hanger rods, said hanger rods being adjustably attached to the rear diverging ends of said adapter arms.

2. In a ground-working and cultivating machine of the class described, a carriage for a frame structure, said carriage comprising a pair of horizontal, spaced, parallel, ground-engaging runners, an arch vertically arranged and formed integral with the forward end of said runners, integral uprights at the rear ends of said runners,

vertically elevated, horizontally disposed adapter arms secured at their outer, forward ends to portions of the arch and at their rear, intermediate portions to the upper ends of said uprights, the rear ends of said adapter arms diverging rearwardly and outwardly beyond the lines of draft of the uprights, a pair of blades, these being disposed in diverging relation on opposite sides of the carriage and having connection with the frontal portions of said runners, and a pair of plow feet having vertical hanger rods, said hanger rods being adjustably attached to the rear diverging ends of said adapter arms, said plow feet being in a horizontal plane with said blades and the lower ground-engaging surfaces of the runners, and said plow feet being located to travel in lines of draft parallel to but between the lines traversed by the runners and rear end portions of said blades, whereby said rear end portions are disposed in lines completely outwardly of the outermost positions of said plow feet.

' HARMON D. MAY. 

